After you publish changes to a Power BI semantic model it can take a few minutes, sometimes up to an hour, for updates to the AI Instructions to be applied. This means if you’re testing Power BI ...

Power BI Copilot knows about the relationship between measures and tables, which means that it’s very good at knowing which ...

One of the most confusing, under-documented and widely-misunderstood features of Power BI and Power Query (or Excel “Get & Transform” or whatever you want to call it) are the data privacy settings. I ...

One of the most common errors you’ll see when working with Power Query in Power BI or Excel is this: Expression.Error: The key didn’t match any rows in the table It can occur with almos… ...

The Web.Contents() function in M is the key to getting data from web pages and web services, and has a number of useful – but badly documented – options that make it easier to construct urls for yo… ...

In my recent post on web services in Power Query I mentioned that while the Power Query Web.Contents() function generates a GET request by default, you can make it generate a POST request by specif… ...

One very common requirement when creating a Power BI report is the ability to apply a filter for the current day, week, month, quarter or year. There are several ways of implementing this: you coul… ...

In the last two posts in this series I showed how removing columns from the tables used in a Power Query merge operation can improve refresh performance. In this post I’ll show you a different trick ...

If you’re working with large amounts of data in Power BI you may find that you have problems because: Your pbix file is very large You spend a long time waiting for refreshes to finish in Power BI ...

One of many cool things about Power Query is the way that it allows you to retrieve data from web services and load it into Excel. While this is a subject that lots of people (including me) have ...

Jason Thomas and Gerhard Brueckl have both blogged on the subject of storing images as text inside a Power BI dataset: Since they wrote those posts, however, Power BI has added the ability to set t… ...

Here’s a recording of a session I did for the Manchester (UK) Power BI user group recently on best practices for DirectQuery mode in Power BI: I’ve done it for a few other groups over the last six ...